[INFO] fetching crate aktoro 0.1.0-alpha.4...
[INFO] checking aktoro-0.1.0-alpha.4 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate aktoro 0.1.0-alpha.4 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate aktoro 0.1.0-alpha.4 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aktoro 0.1.0-alpha.4
[INFO] finished tweaking crates.io crate aktoro 0.1.0-alpha.4
[INFO] tweaked toml for crates.io crate aktoro 0.1.0-alpha.4 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34982efa81d51b5d5097e5ab99ade338f962151fda8ae11cbecfb67c23a9a7b1
[INFO] running `Command { std: "docker" "start" "-a" "34982efa81d51b5d5097e5ab99ade338f962151fda8ae11cbecfb67c23a9a7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34982efa81d51b5d5097e5ab99ade338f962151fda8ae11cbecfb67c23a9a7b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34982efa81d51b5d5097e5ab99ade338f962151fda8ae11cbecfb67c23a9a7b1", kill_on_drop: false }`
[INFO] [stdout] 34982efa81d51b5d5097e5ab99ade338f962151fda8ae11cbecfb67c23a9a7b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fa2e96e63e7b1b06e52daebd7c5e62e814926212ec558ff14e1d1f8f639648a
[INFO] running `Command { std: "docker" "start" "-a" "8fa2e96e63e7b1b06e52daebd7c5e62e814926212ec558ff14e1d1f8f639648a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking rand_xoshiro v0.2.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking aktoro-raw v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking aktoro-channel v0.1.0-alpha.8
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking aktoro-context v0.1.0-alpha.4
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking runtime-raw v0.3.0-alpha.5
[INFO] [stderr]    Compiling runtime-attributes v0.3.0-alpha.6
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking runtime v0.3.0-alpha.8
[INFO] [stderr]     Checking aktoro-runtime v0.1.0-alpha.4
[INFO] [stderr]     Checking aktoro v0.1.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.03s
[INFO] running `Command { std: "docker" "inspect" "8fa2e96e63e7b1b06e52daebd7c5e62e814926212ec558ff14e1d1f8f639648a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa2e96e63e7b1b06e52daebd7c5e62e814926212ec558ff14e1d1f8f639648a", kill_on_drop: false }`
[INFO] [stdout] 8fa2e96e63e7b1b06e52daebd7c5e62e814926212ec558ff14e1d1f8f639648a